<?php
$basedir = dirname(__FILE__);
//echo $basedir;
/*if(isset($_GET['dir'])){
 $basedir=$_GET['dir'];
 }else{
 $basedir = '.';
 }*/
$auto = 1;
checkdir($basedir);
 
function checkdir($basedir){  
    if($dh = opendir($basedir)){  
        while(($file = readdir($dh)) !== false){
        	
        	if($file != '.' && $file != '..'){
                if(!is_dir($basedir."/".$file)){
	                $fileSurfix = substr($file, -3);
		        	if( $fileSurfix != "php" ){
		        		continue;
		        	}
                    echo "filename: $basedir/$file ".checkBOM("$basedir/$file")." <br>";  
                }else{
                    $dirname = $basedir."/".$file;  
                    checkdir($dirname);
                }
            }
        }//end while
        closedir($dh);
    }//end if($dh
}//end function
function checkBOM($filename){  
    global $auto; 
    $contents = file_get_contents($filename);  
    $charset[1] = substr($contents, 0, 1);
    $charset[2] = substr($contents, 1, 1);
    $charset[3] = substr($contents, 2, 1);
    if(ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191){  
        if($auto == 1){
            $rest = substr($contents, 3);  
            rewrite ($filename, $rest);
            return "<font color=red>BOM found, automatically removed.</font>";  
        }else{
            return ("<font color=red>BOM found.</font>");  
        }
    }
    else return ("BOM Not Found.");  
}//end function
function rewrite($filename, $data){  
    $filenum = fopen($filename, "w");  
    flock($filenum, LOCK_EX);
    fwrite($filenum, $data); 
    fclose($filenum);
}//end function
?>
